引用本文: | 隋卫平,潘仲明,王跃科.一种新型的超声换能器驱动与回波检测电路设计[J].国防科技大学学报,2004,26(3):107-111.[点击复制] |
SUI Weiping,PAN Zhongming,WANG Yueke.A New Type of Driving and Echoes Detection Circuit for Ultrasonic Transducers[J].Journal of National University of Defense Technology,2004,26(3):107-111[点击复制] |
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一种新型的超声换能器驱动与回波检测电路设计 |
隋卫平, 潘仲明, 王跃科 |
(国防科技大学 机电工程与自动化学院,湖南 长沙 410073)
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摘要: |
通过对超声换能器的工作原理分析,设计了一种新型的超声换能器驱动与回波检测电路。驱动电路由功率放大器、脉冲变压器及一定的补偿电路组成;回波检测电路由前置放大器、带通滤波器和自动电平控制电路组成。试验结果显示,此电路性能良好,能明显提高超声换能器的测距范围。 |
关键词: 超声测距 超声换能器 脉冲变压器 自动电平控制 |
DOI: |
投稿日期:2003-11-15 |
基金项目: |
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A New Type of Driving and Echoes Detection Circuit for Ultrasonic Transducers |
SUI Weiping, PAN Zhongming, WANG Yueke |
(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073,China)
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Abstract: |
This paper presents a new type of driving and echoes detection circuit for ultrasonic transducers based on the analysis of their working mechanization. The driving circuit consists of a power amplifier, a pulse transformer and a compensation circuit. The echoes detection part is made up of a preamplifier, a band-pass filter and an ALC circuit. The experiment shows that this circuit can improve ultrasonic ranging distance and has good performances than the original ones. |
Keywords: ultrasonic ranging ultrasonic transducer pulse transformer auto level control |
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